Sealing structure based on breathing mask and air leakage prevention breathing mask

Abstract

The sealing structure based on the breathing mask comprises a flexible support, the flexible support is provided with a clamping piece used for being detachably connected with the edge of the breathing mask, the flexible support is further provided with a hydrogel sealing body matched with the outline of the flexible support, the hydrogel sealing body extends outwards, and the clamping piece is arranged on the flexible support. The side, away from the face skin, of the hydrogel sealing body is arranged to be an inclined face inclining outwards, and the inclined face is used for being matched with a bandage structure of the breathing mask to apply an inclined inward acting force so as to ensure that the hydrogel sealing body can be tightly attached to the face skin. The mask has the advantages that the hydrogel sealing body is used as a filling material between the edge of the mask and the face skin, the inclined face is arranged after the acting area of the hydrogel sealing body is properly extended, acting force can be obliquely and inwards applied in cooperation with the bandage structure so that the hydrogel sealing body can be tightly attached to the face skin, and on one hand, oxygen leakage can be avoided; on the other hand, face pressure can be dispersed, and therefore pressure sores are prevented from breeding.

Description

Technical Field

[0001] The utility model relates to the field of medical auxiliary equipment, in particular to a sealing structure based on a breathing mask and an air leakage-proof breathing mask. Background Art

[0002] A respiratory mask is a respiratory assist device, which is usually used in conjunction with a ventilator in clinical practice. When patients use a respiratory mask, due to the uniform model of the respiratory mask and the different facial contours of the patients, the edges of the respiratory mask cannot fully fit the facial skin of different patients when they wear it, which often causes air leakage and affects the treatment effect. At the same time, when patients wear the respiratory mask for a long time, the edges of the mask will also exert long-term pressure on the facial skin of the patient, which can easily lead to the growth of pressure sores.

[0003] To solve the above problems, the Chinese utility model patent with the authorization announcement number CN211409708U discloses a leak-proof protective dressing for a breathing mask, including a protective dressing body, which includes a base pad and a bolster pad. The protective dressing body is stored separately in a receiving plate, and several receiving plates are stacked in a storage box. The protective dressing can fill the gap between the breathing mask and the patient's facial skin, so that the breathing mask can better fit the structure of the nose and face to prevent air leakage. At the same time, the protective dressing can disperse pressure to achieve a decompression effect and avoid the growth of facial pressure sores.

[0004] However, considering that the cheeks of patients with bilateral molar loss or abnormally thin faces tend to be sunken into the mouth, it may be difficult for the dressing to fully fill the edge of the mask and the cheek depressions by applying pressure through the mask alone, and the risk of air leakage is still relatively high. Utility Model Content

[0005] In view of this, one of the objects of the present invention is to propose a sealing structure based on a breathing mask, using a hydrogel sealing body as a filling material between the edge of the mask and the facial skin, and setting an inclined surface after appropriately extending the effective area of ​​the hydrogel sealing body, which can cooperate with the strap structure to apply a force tilted inward so that the hydrogel sealing body is closely attached to the facial skin, which can avoid oxygen leakage on the one hand, and disperse facial pressure on the other hand, thereby preventing the growth of pressure sores; another object of the present invention is to provide an air leakage-proof breathing mask adapted for the aforementioned sealing structure.

[0006] In order to achieve the above purpose, the utility model first discloses a technical solution:

[0007] A sealing structure based on a breathing mask, the key of which is: comprising a flexible bracket in a closed or open structure, the flexible bracket having a clamping piece for detachably connecting to the edge of the breathing mask, and a hydrogel sealing body adapted to its contour is also arranged on the flexible bracket, the hydrogel sealing body extends outward, and the side away from the facial skin is arranged as an outwardly inclined inclined surface, the inclined surface is used to cooperate with the strap structure of the breathing mask to apply an inclined inward force to ensure that the hydrogel sealing body is tightly fitted to the facial skin.

[0008] Furthermore, the flexible support adopts a closed structure, and a clamping ring as a clamping member is arranged on the side of the flexible support away from the facial skin, and the clamping ring is adapted to the edge contour of the breathing mask.

[0009] Based on the above structure, the utility model also discloses an anti-leakage breathing mask, including a mask body with an air inlet and an air outlet, characterized in that the edge of the mask body is clamped with the above sealing structure through a slot, and a strap structure is also provided on the periphery of the slot.

[0010] Furthermore, the air inlet and the air outlet are respectively arranged to correspond to the mouth and nose of a human body.

[0011] Furthermore, an oxygen supply joint is connected to the air inlet via a bent pipe assembly.

[0012] Furthermore, the strap structure includes a cover cloth connected to the outer contour surface of the slot, and the edge of the cover cloth is connected to an elastic strap via a multi-point connector. The elastic strap can pull the cover cloth along the inclined surface of the hydrogel sealing body so that the cover cloth applies an inclined inward force to the hydrogel.

[0013] Furthermore, a mouthpiece structure is detachably installed in the mask relative to the air outlet.

[0014] Furthermore, the dental tray structure includes an upper dental tray and a lower dental tray, and a group of cheek trays are arranged between the two.

[0015] Furthermore, the ends of the upper and lower dental trays are elastically connected via a connecting piece, the head ends of the upper and lower dental trays are respectively connected to a clamping plate, and a clamping port cooperating with the clamping plate is also provided in the mask body.

[0016] Compared with the prior art, the remarkable effects of the utility model are:

[0017] (1) The sealing structure of the utility model adopts a gel sealing body as the filling material between the edge of the mask and the facial skin. Since the hydrogel is soft and elastic, has good biocompatibility, is non-irritating and non-sensitizing, can disperse and buffer pressure, and reduce friction and shear force, it is more suitable for the application scenario of the breathing mask than other plastic sealing materials;

[0018] (2) By appropriately extending the active area of ​​the hydrogel sealing body and then setting an inclined surface, the bandage structure can be coordinated to apply an inward force so that the hydrogel sealing body is closely attached to the facial skin. On the one hand, it can prevent oxygen leakage, and on the other hand, it can disperse facial pressure, thereby preventing the growth of pressure sores;

[0019] (3) The mask body and the sealing structure are detachably connected by using a card connector and a card slot. When a poor sealing accident occurs, only the sealing structure needs to be replaced for quick treatment, and the respiratory mask body can continue to be used, which is beneficial to saving medical resources and also reduces the economic burden on patients;

[0020] (4) The air inlet and outlet of the mask body correspond to the patient's mouth and nose respectively, which makes it convenient for the patient to follow the doctor's instructions to inhale oxygen from the nose and exhale from the mouth, avoiding the pressurized oxygen directly entering the gastrointestinal tract through the patient's mouth and causing bloating and discomfort, which is more in line with the application needs of oxygen inhalation therapy;

[0021] (5) The mouthpiece structure is mainly suitable for patients with thin faces, missing teeth, or no teeth. It can keep the patient's mouth in a natural slightly open state, allowing exhalation to be smoother. At the same time, it can support the patient's cheek depressions, thereby ensuring that the cheek skin that is prone to air leakage fits tightly with the sealing structure, resulting in better use effect, especially suitable for elderly patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0023] Figure 1 is a structural schematic diagram of the sealing structure in Example 1;

[0024] Figure 2 Schematic diagram of the overall structure of the breathing mask in Example 1 (I);

[0025] Figure 3 Schematic diagram of the overall structure of the breathing mask in Example 1 (II);

[0026] Figure 4 Schematic diagram of the overall structure of the breathing mask in Example 1 (III);

[0027] Figure 5 Schematic diagram of the overall structure of the breathing mask in Example 1 (IV);

[0028] Figure 6 FIG1 is an assembly diagram of a breathing mask in Embodiment 1 (I);

[0029] Figure 7 It is the assembly diagram (II) of the breathing mask in the first embodiment;

[0030] Markings in the figure: 1-sealing structure, 101-flexible bracket, 102-clamping piece, 103-hydrogel sealing body, 104-inclined surface, 2-mask body, 201-air inlet, 202-air outlet, 203-clip groove, 204-oxygen supply connector, 205-clip, 206-limiting port, 207-bend pipe assembly, 3-binding structure, 301-cover cloth, 302-multi-point connecting piece, 303-elastic binding, 4-dental tray structure, 401-upper dental tray, 402-lower dental tray, 403-cheek tray, 404-connecting piece, 405-clip plate, 406-limiting convex ridge. DETAILED DESCRIPTION

[0031] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0032] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0033] Figure 1 The first embodiment of the utility model is shown: a sealing structure 1 based on a breathing mask, comprising a flexible bracket 101 in a closed or open structure, the flexible bracket 101 having a clip 102 for detachably connecting to the edge of the breathing mask, and a hydrogel sealing body 103 adapted to its contour is also arranged on the flexible bracket 101, the hydrogel sealing body 103 extends outward, and the side away from the facial skin is arranged as an outwardly inclined inclined surface 104, the inclined surface 104 is used to cooperate with the strap structure 3 of the breathing mask to apply an inclined inward force to ensure that the hydrogel sealing body 103 is tightly fitted to the facial skin.

[0034] In this embodiment, the flexible bracket 101 adopts a closed structure, and a clamp ring as a clamping member 102 is provided on the side of the flexible bracket 101 away from the facial skin, and the clamp ring is adapted to the edge contour of the breathing mask. In some other embodiments, in order to facilitate the centralized storage of the flexible bracket 101, the flexible bracket 101 can also adopt an open structure. It should be noted that when the flexible bracket 101 adopts an open structure, its shape after being installed on the mask body 2 is also adapted to the edge contour of the mask body 2.

[0035] See also Figures 2 to 7 This embodiment also discloses an anti-leakage breathing mask, comprising a mask body with an air inlet 201 and an air outlet 202, characterized in that: the edge of the mask body is clamped with the sealing structure 1 described above through a clamping groove 203, and a strap structure 3 is also arranged on the periphery of the clamping groove 203. The air inlet 201 and the air outlet 202 are respectively arranged corresponding to the mouth and nose of the human body. An oxygen supply connector 204 is also connected to the air inlet 201 through a bend assembly 207.

[0036] like Figures 3 to 5 As shown, in a specific implementation, the strap structure 3 includes a cover cloth 301 connected to the outer contour surface of the card slot 203, and the edge of the cover cloth 301 is connected to an elastic strap 303 through a multi-point connector 302. The elastic strap 303 can pull the cover cloth 301 along the inclined surface 104 of the hydrogel sealing body 103, so that the cover cloth 301 applies an inclined inward force to the hydrogel. Under the joint action of the elastic strap 303, the multi-point connector 302 and the cover cloth 301, pressure can be applied to the hydrogel sealing body 103 at multiple points, thereby improving the sealing performance.

[0037] from Figures 4 to 7 It can be seen that, considering the problem of sunken cheeks of thin, toothless or missing teeth patients, a dental support structure 401 is detachably installed in the mask relative to the air outlet 202. Specifically, the dental support structure 401 includes an upper dental support 401 and a lower dental support 402, and a group of cheek supports 403 are arranged between the two.

[0038] See also Figure 6 and Figure 7 In order to quickly realize the disassembly and assembly of the dental tray structure 401, the ends of the upper dental tray 401 and the lower dental tray 402 are elastically connected through a connecting piece 404, and the head ends of the upper dental tray 401 and the lower dental tray 402 are respectively connected to a clamping plate 405, and a clamping port that cooperates with the clamping plate 405 is also provided in the mask body 2. Preferably, in order to improve the stability of the dental tray structure 401 after installation, a limiting convex rib 406 is further provided at the front end of the clamping plate 405, and a limiting opening 206 is provided in the clamping port corresponding to the limiting convex rib 406.

[0039] In summary, the sealing structure 1 of the utility model adopts a gel sealing body as the filling material between the edge of the mask and the facial skin. Since the hydrogel is soft and elastic, has good biocompatibility, is non-irritating and non-sensitizing, can disperse and buffer pressure, and reduce friction and shear force, it is more suitable for the application scenario of the breathing mask than other plastic sealing materials; the inclined surface 104 is set after the effective area of ​​the hydrogel sealing body 103 is appropriately extended, and the binding structure 3 can be cooperated to apply a force inwardly to make the hydrogel sealing body 103 close to the facial skin. On the one hand, it can avoid oxygen leakage, and on the other hand, it can disperse facial pressure, thereby preventing the breeding of pressure sores; the snap-in piece 102 and the card slot 203 are used to realize the detachable connection between the mask body 2 and the sealing structure 1. When a poor sealing accident occurs, it is only necessary to replace the sealing structure 1 for quick processing, and the breathing mask body 2 can continue to be retained and used, which is conducive to saving medical resources and also reduces the economic burden on patients; the air inlet 201 and the air outlet 202 of the mask body 2 correspond to the patient's mouth and nose respectively, which is convenient for patients to follow the doctor's advice to inhale oxygen from the nose and exhale from the mouth, avoiding pressurized oxygen directly entering the gastrointestinal tract through the patient's mouth and causing bloating and discomfort, which is more in line with the application needs of oxygen inhalation therapy; the dental tray structure 401 is mainly suitable for patients with thin faces, missing teeth, and no teeth. It can keep the patient's mouth in a natural slightly open state, making exhalation smoother, and at the same time it can support the patient's cheek depressions, thereby ensuring that the cheek skin that is prone to air leakage is closely fitted with the sealing structure 1, and the use effect is better, especially suitable for elderly patients.

[0040] Finally, it should be noted that the technical solution disclosed above is only a preferred embodiment of the present utility model, and it certainly cannot be used to limit the scope of rights of the present utility model. Ordinary technicians in this field can understand that all or part of the processes of the above-mentioned embodiments and equivalent changes made according to the claims of the present utility model still fall within the scope covered by the utility model.

Claims

1. A sealing structure based on a breathing mask, characterized in that: The invention comprises a flexible support in a closed or open structure, wherein the flexible support is provided with a clamping piece for detachably connecting to the edge of a breathing mask, and a hydrogel sealing body adapted to the contour of the flexible support is also provided on the flexible support, wherein the hydrogel sealing body extends outwardly, and a side thereof away from the facial skin is provided with an outwardly inclined inclined surface, wherein the inclined surface is used to cooperate with the strap structure of the breathing mask to exert an inclined inward force to ensure that the hydrogel sealing body is closely fitted to the facial skin.

2. The sealing structure based on the breathing mask according to claim 1, characterized in that: The flexible support adopts a closed structure, and a clamping ring as a clamping member is arranged on the side of the flexible support away from the facial skin, and the clamping ring is adapted to the edge contour of the breathing mask.

3. An anti-leakage breathing mask, comprising a mask body with an air inlet and an air outlet, characterized in that: The edge of the mask body is clamped with the sealing structure as claimed in claim 1 or 2 through a clamping groove, and a binding strap structure is also arranged on the periphery of the clamping groove.

4. The air leakage-proof breathing mask according to claim 3, characterized in that: The air inlet and the air outlet are respectively arranged corresponding to the mouth and nose of the human body.

5. The air leakage-proof breathing mask according to claim 4, characterized in that: The air inlet is also connected with an oxygen supply joint via a bent pipe assembly.

6. The air leakage-proof breathing mask according to claim 4 or 5, characterized in that: The strap structure includes a cover cloth connected to the outer contour surface of the slot, and the edge of the cover cloth is connected to an elastic strap via a multi-point connector. The elastic strap can pull the cover cloth along the inclined surface of the hydrogel sealing body so that the cover cloth applies an inclined inward force to the hydrogel.

7. The air leakage-proof breathing mask according to claim 6, characterized in that: A dental tray structure is detachably mounted in the mask relative to the air outlet.

8. The air leakage-proof breathing mask according to claim 7, characterized in that: The dental support structure comprises an upper dental support and a lower dental support, and a group of cheek supports are arranged between the upper dental support and the lower dental support.

9. The air leakage-proof breathing mask according to claim 8, characterized in that: The ends of the upper and lower dental trays are elastically connected via a connecting piece, the head ends of the upper and lower dental trays are respectively connected to a clamping plate, and a clamping port cooperating with the clamping plate is also arranged in the mask body.

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